Hey All,
I have a 2004 Carrera C2. I have the fabspeed super cup mufflers on the car now. I have the fabspeed headers but not on the car yet. I'm planning on putting the IPD plenum, EVOMS CAI, and a tune. Here's my question. actually 2 questions. 1. I want the fabspeed CAT bypass but will that hurt my low end torque due to lack of back pressure or should I get the 100 cell CATs? 2. in conjunction with the IPD plenum I've heard the GT3 throttle body is a good addition but I'm not changing anything internal in the engine (cam, heads, ect.) so would this throttle body be over kill and actually hurt performance. Thanks for any info.

 

Is there any chance that you went to a dyno before you started this project? I would love to see a before and after dyno run after all this is finished.

 

Hey RngTrtl,
I will Im planning on having the car dynode before and after. Waiting on money to complete my parts list at the moment.

 

Awesome. Keep us posted. Im curious what the real world dyno #s will be before and after. Thanks for the info.

 

No worries buddy

 

I got the throttle body on mine bored out for half the $ of a gt3 throttle body. Because the gt3 throttle body is over kill. And with the PD it works awesome.